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United States Patent | 6,157,116 |
Sampietro ,   et al. | December 5, 2000 |
Noise effects in a disc drive having a disc on a rotating spindle in a housing are reduced by inducing vibrations in the housing of the disc drive that at least partially cancel a characteristic acoustic noise signal of the drive.
Inventors: | Sampietro; Joseph M. (Tarzana, CA); Hawwa; Muhammad A. (Simi Valley, CA); Mohajerani; Khosrow (Newbury Park, CA); Fard; Anoush M. (Agoura Hills, CA); Barina; Jeffrey G. (Somis, CA) |
Assignee: | Seagate Technology LLC (Scotts Valley, CA) |
Appl. No.: | 014649 |
Filed: | January 28, 1998 |
Current U.S. Class: | 310/334 |
Intern'l Class: | H01L 041/04 |
Field of Search: | 381/71.7 310/328,334 |
5668744 | Sep., 1997 | Varadan et al. | 364/528. |
5692053 | Nov., 1997 | Fuller et al. | 381/71. |
5786735 | Jul., 1998 | Su | 331/158. |
5828768 | Oct., 1998 | Eatwell et al. | 381/333. |